Corona Energy Loss Influence of Surface Conditions as Affecting Corona Energy Loss From High-Voltage Transmission Lines

Coatings of various materials, lacquers, oils, oxides or paints were applied to conductors of number 2 B & S gage 257.3 mils diameter, solid aluminum or copper conductors. Measurements of corona energy losses above and below critical corona voltages were made by means of a wattmeter setting and water resistor multiplier.